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The scheme of shift 2 ribsSometimes in big cubes can have the situation where two edges not fell into place, in this case, you can exchange them for the next uncomplicated movement:
The principle of the permutation centers in big cubes All central elements in big cubes obey the principle of permutation centers on the cube 3x3x3, consider an example:
That is, were the same as in the 3x3x3 cube, only shifted coordinate axis. Now we can do the next focus. Before returning axises to its place perform substitution:
As a result of this substitution, we have found that 2 central elements exchanged their places, and on the other side of all the centers back to the places:
Applying only this scheme with a different offset coordinate axis, we can gradually put all the central elements. We can also move the central elements, moving several axises:
In the result:
Another move for a quick exchange pairs parallel of the central elements:
Note we can move several central elements if rotate several layers. Date: 2015-12-24; view: 1041
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